Telephone.



A. ENGELBERG.

TELEPHONE.

APPLICATION FILED was. 191:.

Patented Apr. 1, 1919.

3 SHEETS-SHEET I.

amewtoz .42 THUR Ema: BERG A. ENGELBERG.

TELEPHONE,

APPLICATION FILED AUG.9. 1917. 1,299, 1 54., Patented Apr. 1, 1919.

3 SHEETS-SHEET 2.

I I h 73 .F I G. 2.

'i/wawtoz ARTHUR ENGELBERG A. ENGELBERG.

TELEPHONE.

APPLICATION FILED AUG-9. 19!].

Patented Apr. 1,1919.

3 $HEETS-SHEET 3.

. 8 6 7 s M H K. 3 0 6 .i 7- \u\ 5: 4 5 9 6 7 E I m a a a m H FIG- 4 awuwntoz ARTHUR ENGELBERG- a Q] (VI/WI drawn,

m nuemnae, or omen, canroma TELEPHONE.

Specification of Letters Intent.

Patented Apr. 1. 1919.

' Application fled August 9, 1917., Serial No. 185,288.

To all whom it may concern: 1

Be it known that I, Axrmm Enennnnue, citizen of the United States, residing at Oakland, in the county of Alameda and State of California, have invented certain new and useful Improvementsin Telephones,

of which the following is a specificatlon.

- jected to The present invention is an improvement in telephone equipment and means for improving the service to subscribers on a telephone system.

The rincipal object of the invention is to provide a means of apprisinai a subscriber of calls coming in during his sence and of preserving a record of such calls with the numbers of the parties said calls.

It frequently happens that a subscriber .is called during his temporary absence, or

the absence of an employee whose duty it is to attend the tele hone. If there is no response the party g is put to the necessity of repeatedly calling the number wanted. Business and professional men are suba considerable loss by this procedure as atrons who value their time will call another rather than sufier delay. The telephone system also sufiers aconslderable loss in the same way by reason of the time consumed in re calls and answers by a central operator and by the resultant loss of the use of the wire d that time.

A further object of in improvement is to provide a mechanism w ereby a central operator may, when requested, register at a subscribers telephone the number of the party calling him, and by so doing make one call suflice.

Obviously this will result in a great saving in the cost of operation of a telephone system-by elimina the repeated request for one number and necessary response of the operator to the arty calling, and at the same time ren er adistinct service to the general public in the form of a time saving improved telephone service to subscribers.

These objects are accom lished by the novel structure hereinafter escribed in the specification and in the accompanying drawings, in which, V

Figure 1 is a perspective view of a tele- 7 phone transmitter with my improvement attached thereto, a casing being partly broken away to show the detalls of the mechanism.

F1 2 is a plan view of the base of the telep one and the working parts of my de vice.

Fig. 3 is a side view-of the same.

Fig. 4 is a front view of same.

Referring to the drawlngs, 1 indicates a telephone mouth piece attached to a transmitter 2 pivoted as shown at 3 in the upper end of a standard 4 attachedat its lower end to a base 6 having a felt foundation 7. This equipment, including a receiver 8 and receiver hook 9, constitutes a desk telephone of usual construction.

' To the base 6 is secured by bolts 11 a floor piece 12 of insulative material. A box or casing 13 is fitted over the floor 12 and has a semiclrcular mortise at one corner to receive the vertical standard 4 of the telephone.

which extend two binding osts 16 in which are secured ends of wires 1 and 18 connected at their opposite ends with the telephone circuit. The posts 16 are suitably electrically connected to the telegraphic receiving magnet 22 secured to the floor or base plate 12 by a screw 23, which magnet when energized attracts a magnet bar 27 soldered to an elbow lever 28. The elbow lever 28 is soldered to a pivot pin 29, the ends of which are pivoted in holes in vertical shaped standards 31, seated on washers 32 and held by bolts 33 to the base plate 14. The end of the elbow lever 28 adjacent its pivotal point is pointed and upturned as shown at 34 for engaging a loop at one end of a tension spring 36 secured at its opposite end to the base plate 14. The member of the elbow 1ever erpendicular to its pivoted member has a w eel 37 journaled on its end, said wheel being adapted to rotate when depressed by the receiving magnet 26 and contacted with a moving tape. 38.

The tape 38 is coiled on a reel 39 having a shaft 41 revoluble in holes in vertical members of a U-shaped strip of metal 42 secured near its central portion to the floor 12.

' pressure of rollers 43 and 44 havin reduced extension for bearings. The re er 43 is journaled on a shaft 45 extending through holes in a U-shaped yoke 46 soldered toan L-brace 47 which is soldered at its other end to a disk 48. The roller 44 is journaled in a slot 49 in the oke 46. The tape 38 betweenithe rollers 43. and 44 and is ,511 soldered at which is de re se' by a 1 one-end toione end ofthe'yo e46 and bearin at its other end' -on-"the middle of the ro er 44.

The rollers '43 and 44 ened for better gripping purposes and the roller 44 is turned down or smoothed at'its center for lessening the friction of sprin .51.

Power is applied to the shaft 45 by a train of gears consistin of a clockwork of usual construction and mclosed between the disk 48 and two similar parallel disks 52 and 53. The aforementioned train of gears are actuated by a clock spring 54 whichis wound by a key 56 extending through the casing;13.

The clockwork is started and stopped to operate the tape 38 in the following manner:

Secured on the shaft 45 is a pinion meshing with a gear wheel 58. The shaft 45 rotates clockwise and the pinion causes the gear wheel 58 to revolve counter-clockwise. The gear wheel 58 has a hole 59 for engaging a stop pin 61 secured to a spring lever 62 secured at one end to the disk 48-. The opposite end of the spring lever 62 is actuated by an elbow lever 63, one end of which is bent around the lever 62. The elbow lever 63 is pivoted at the elbow on a' pin 64 extending through two vertical members of a bifurcated post 66 seated on an'insulative.

washer 67 and secured to the floor 12. The horizontal member of the elbow lever 63 extends beneath the tape 38 to a point 68 (Fig. '2) where it is bent at a right angle; the bent member thus formed is substantially S-shaped and its extermity extends beneath and beyond the member of the elbow lever 28 on which the wheel 37 is journaled. The purpose of this construction is to synchronize the movement of the tape 38 with that of the recording wheel 37.

It will be seen that when the receiving magnet 26 is energized by a telegraphic impulse directed by a central operator, the elbow lever 28 is depressed and it in turn depresses the end of the elbow lever 63 causing its opposite end to vibrate the spring lever 62 to the dotted position shown in Fig. 4, and causing it to withdraw the stop pin 61 from the hole 59 in the gear wheel 58, whereupon the clockwork runs and causes the rollers 43 and 44 to push the tape through a guide frame 69 under the recording wheel and through a flattened delivery tube 71 extending through the wall of the casing 13.

forward bythedpres'sure; of the roller 44-,

are milled or rough-v The edges of the periphery of the recording wheel 37 are mitered to form a line forming a sharp edge as shown at 72, Fig. 4. The recording wheel is inked by contact with projecting bristles of a Wick 73 saturated with ink or dye contained in a fountain 74 slidably seated on a block 76 and secured imposition by a metal strap 77 tacked as shown at78'to said block.

1Q};'whenra central operator calls a subscriber {and geeno response, she can,if requested, 'whi le*thecircuit-is open, connect a telegraph operator in the central oflice with the fparticular number wanted which did not answer the call, whereupon the said telegraph operator will by means of a telegraph key record the-number on the tape 38, in characters of the Morse or other code.

' For instance: Oak. 458 wants Oak. 762., The latter does not answer and Oak. 458 or- .ders a call to be recorded on Oak. 762. The

telephone operator writes on a ticket, Oak. 458 wants Oak. 762, and sends this ticket to the telegraph operator after having connected the latter with Oak. 762. Upon the return tohis oifice Oak. 762 will find the orderon the tape and ring up Oak. 458.

It will be understood that no equipment other-than that described is necessary as the wiring and batteries of the telephone are available for the telegraphic conduction.

What I claim as new and wish to secure by Letters Patent is z- 1. A device of the kind described comprising a magnet, a lever to be actuated by the magnet, a recording means actuated by the lever, a reel .of record tape arranged to be contacted by said recording means, a motor for feeding the tape from the reel, a wheel rotated by the motor and having a recess therein, a spring arm having a lock pin thereon to engage in said recess for maintaining the motor against operation, and a pivoted releasing lever engaging with said spring arm and arranged to be engaged by i said first mentioned lever, when the magnet is energized whereby said spring an'n is vibrated to disengage the lock pin from said recess to temporarily release the motor.

2. A recording device for telephones, com- I prising a comparatively small base plate adapted to be attached to the standard of thetelephone instrument adjacent the base thereof, a telegraphic receiving magnet, a reel of record tape and a spring motor 1 mounted, respectively side-by-side on said base plate, a spring controlled lever pivotally mounted on said base and. carrying an armature thereon arranged over said magnet and having an angularly extended end car- 1 rying a recording means to engage the tape, means operated by the motor for feeding the tape from' the reel, and controlling means for the motor arranged adjacent thereto and including a pivoted releasing lever extend- 1 ing acl'oss the base plate to the proximity of the lever, and to be engaged thereby, when the magnet is energized, for temporarily releasing the motor.

3. In a recording attachment, a base having operable recording means thereon, record tape on the base to be contacted by said means, and an ink reservoir mounted on the base adjacent said means and slidably adjustable relative thereto, and containing a 10 flat wick to contact with the means for inking the same.

In testimony whereof I afiix my signature.

ARTHUR ENGELBERG. 

